selling my old gilera .help please?

can any one sen me in the right direction to selling my old 1979 gilera 50cc trial bike.still has the v5 but no mot.and in very good condition

could any help me on how much i should look to be geting for the bike in the uk and if there are any good places to advertise it.many thanks charlie

ive atached quick pic below that gives you a bit off a idea of what the bike looks like.thanks

http://putfile.com/pic.php?pic=2/4314391292.jpg&s=x2

any help would be good my email adress is

charlie__grey@hotmail.com

thanks again